Datasheet > DS2408S/TR

DS2408S/TR

更新时间： 2024-11-23 21:17:07

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
41页	402K
描述
Micro Peripheral IC,

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技术参数
数据手册

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DS2408S/TR 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.84	Base Number Matches：	1

DS2408S/TR 数据手册

DS2408

1-Wire 8-Channel Addressable Switch

www.maxim-ic.com

FEATURES

PIN CONFIGURATION

C Eight Channels of Programmable I/O with

Open-Drain Outputs

N.C.

C On-Resistance of PIO Pulldown Transistor

100ꢀ (max); Off-Resistance 10Mꢀ (typ)

C Individual Activity Latches Capture

Asynchronous State Changes at PIO Inputs

for Interrogation by the Bus Master

C Data-Strobe Output to Synchronize PIO

Logic States to External Read/Write Circuitry

C Built-in Multidrop Controller Ensures

Compatibility with Other Dallas

V_CC

I/O

GND

N.C.

RSTZ

150-mil SO

Semiconductor 1-Wire^®Net Products

C Supports 1-Wire Conditional Search

Command with Response Controlled by

Programmable PIO Conditions

ORDERING INFORMATION

TEMP

PART

PACKAGE

C Unique Factory-Lasered 64-Bit Registration

Number Ensures Error-Free Device Selection

and Absolute Part Identity

RANGE

DS2408S

/T&R

16-Pin SO, 150 mil

Tape-and-Reel of

DS2408S

-40LC to +85LC

C Communicates to Host with a Single Digital

Signal at 15.3kbps or 100kbps using 1-Wire

Protocol

C Operating Range: 2.8V to 5.25V, -40°C to

+85°C

DESCRIPTION

The DS2408 is an 8-channel, programmable I/O 1-Wire chip. PIO outputs are configured as open-drain

and provide an on resistance of 100ꢀ max. A robust PIO channel-access communication protocol ensures

that PIO output-setting changes occur error-free. A data-valid strobe output can be used to latch PIO logic

states into external circuitry such as a D/A converter (DAC) or microcontroller data bus.

DS2408 operation is controlled over the single-conductor 1-Wire bus. Device communication follows the

standard Dallas Semiconductor 1-Wire protocol. Each DS2408 has its own unalterable and unique 64-bit

ROM registration number that is factory lasered into the chip. The registration number guarantees unique

identification and is used to address the device in a multidrop 1-Wire net environment. Multiple DS2408

devices can reside on a common 1-Wire bus and can operate independently of each other. The DS2408

also supports 1-Wire conditional search capability based on PIO conditions or power-on-reset activity;

the conditions to cause participation in the conditional search are programmable. The DS2408 has an

optional V_CCsupply connection. When an external supply is absent, device power is supplied parasitically

from the 1-Wire bus. When an external supply is present, PIO states are maintained in the absence of the

1-Wire bus power source. The RSTZ signal is configurable to serve as either a hard-wired reset for the

PIO output or as a strobe for external circuitry to indicate that a PIO write or PIO read has completed.

1-Wire is a registered trademark of Dallas Semiconductor.

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与DS2408S/TR相关器件

型号	品牌	获取价格	描述	数据表
DS2408S+	MAXIM	获取价格	Parallel I/O Port, 8 I/O, CMOS, PDSO16, 0.150 INCH, ROHS COMPLIANT, SOP-16
DS2408S+T&R	MAXIM	获取价格	Parallel I/O Port, 8 I/O, CMOS, PDSO16, 0.150 INCH, ROHS COMPLIANT, SOP-16
DS2409	DALLAS	获取价格	MicroLAN Coupler
DS2409P	DALLAS	获取价格	MicroLAN Coupler
DS2409P/T&R	DALLAS	获取价格	Serial IO/Communication Controller, MOS, PDSO6,
DS2411	DALLAS	获取价格	Silicon Serial Number with VCC Input
DS2411	MAXIM	获取价格	Silicon Serial Number with Vcc Input
DS2411	ADI	获取价格	硅序列号，带有VCC输入
DS2411P	DALLAS	获取价格	Silicon Serial Number with VCC Input
DS2411P	ROCHESTER	获取价格	SPECIALTY MEMORY CIRCUIT, PDSO6, 0.150 INCH, TSOC-6

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